You may be referring to task ID 48: Software Catalog Update. This is to import a new catalog into ILMT/BFI that will be processed by next import. This task will be applicable only to the server where ILMT/BFI is installed.
Once the catalog is processed, a new task will be submitted automatically (default setup). This will show up in actions as : Catalog Download (Version: XXX).
This is one time action with no reapply. This action will download the catalog to the end points. If this action needs to be rerun for any reason, it should be created as a custom copy from existing action and then target it to the necessary endpoints.
Please confirm which task are you referring to.